Cotton-cleaner.



S. D; MURRAY.

COTTON CLEANER; APPLICATION FILED JULY 5, 1910.

Patented May 2, 1911.

rue mmms PETERS ca WASHINGTON, n, c

-view of one of the beater arms.

STEPHEN D. MURRAY, OF DALLAS, TEXAS.

COTTON-CLEANER.

Specification of Letters Patent.

Patented May 2, 1911.

Application filed July 8, 1910. Serial No. 571,038.

To all whom it may concern:

Be it known that I, STEPHEN D. MURRAY, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented new and useful Improvements in Cotton-Cleaners,'of which the following is a specification.

This invention relates to cotton cleaners adapted to be disposed in the suction pipe between the telescope and the elevator proper and in any convenient location in the line of pipe, either inside the gin house at the end of the gins, or under the unloading shed on the outside of the gin house.

The invention particularly contemplates the provision of light weight beater arms and the novel application of the arms to the shaft of the cleaner, and whereby the arms may be expeditiously and positively applied to the shaft at difierent angles in alternation without necessitating mutilation of the latter, and, further, permitting the arms to be regularly disposed on the shaft after the latter has been inserted in place in the cleaner casing. The beater arms are strong and durable, structurally advantageous from a standpoint of production as they are similar in form, and the cost of manufacture of the same is reduced to a minimum in view of their simplicity of construction.

With these and other objects and advantages in view, the invention consists in the construction and arrangement of parts which will be more fully hereinafter specified in preferred form.

In the drawing: Figure 1 is a sectional elevation of a cotton cleaner embodying the features of the invention and showing it applied to a portion of the suction pipe, the latter also being broken away. Fig. 2 is a transverse vertical section through the cleaner as shown by Fig. 1. Fig. 3 is a detail perspective view of a portion of the shaft of the cleaneranda pair of the beater arms thereon. Fig. 4 is a detail perspective Fig. 5 is a detail view of one of the clamping devices for the beater arms.

The numeral 5 designates the cleaner casing having a cylindrical screen 6, a lower conveyor 7, and a shaft 8. The cleaner is connected to and supported by the suction pipe 9, communication being established between opposite extremities of the upper portion of the cleaner and the said suction pipe through openings 10 and 11 controlled by closures or valves 12 and 13 hinged in the suction pipe, as shown by Fig. 1, and operating as well understood in the art to permit the entrance and exit of the cotton into and from the cleaner to effect a thorough separation of dust and dirt from the cotton and prepare it for the gins. The shaft 8 is provided with a driving element or band pulley 14 at one end, and the shaft of the conveyer 7 is also equipped with driving means. The features of the cleaner as thus far described are common in devices of this class and it will be understood that the usual door 15, which embodies a part of the screen 6, gives access to the shaft 8 which is centrally disposed with relation to the cleaner generally.

The particular features of the invention reside in the beater arms on the shaft 8 and especially the mode of constructing and applying these arms to the said shaft. The beater arms are arranged in cooperating pairs as at 16 and 17 and each has its outer extremity bent at an angle as at 18 to facilitate the feed of cotton through the cleaner and prevent any tendency of the cotton to pack or set up a resistance to the free liberation thereof by the suction force in the pipe 9. Each beater arm also has a curved recess or notch 19 and a hook 20 at its inner extremity, the recess or notch being cut in one side edge and the hook formed by bending over the inner terminal of the arm, as clearly shown by Fig. 4. Suitable fiat stock is used in forming the beater arms,

and as they are of similar contour and are.

uniform as to details of construction they may be economically and expeditiously produced with advantages in the reduction of cost of cleaner organizations. The notch 19 is formed with a punch and the angular bent end or twisted portion 18 and the hook 20 at the opposite end are produced with a suitable die in a press.

Cooperating with each pair of beater arms are fastening means consisting of a pair of.

of the arms and are seated in the hooks 20 at the inner terminals of said arms. The opposing recesses or notches 19 at the inner edges of the inner extremities of the arms receive opposite portions of the shaft 8 and the shanks of theclamping devices extend over diametrically opposite portions of said shaft. IVhen the clamping devices are tightened up, the inner extremities of each pair of arms are tightly drawn against the shaft 8 and the washers 24 are forced against the outer edge portions of the hooks 20 by the'nuts 23 and a positive and reliable unity of each pair of arms'with the shaft 8 ensues.

The clasping of the beater arms by the shanks of the opposed bolts conjointly with the clasping of the bolts by the hooks 20 of the arms serves to securely hold the flat faces or sides of the beater arms erect and true in planes at right angles with relation to the shaft 8. Furthermore, the counter-action of one clamping device relatively to the other clamping device on each pair of arms results in a stable assemblage of each pair of arms with the shaft 8 in view of the fact that each arm of the pairs of arms is braced by the fastening means explained, one relatively to the other. By applying the arms etlgewise to the shaft 8 and securing them by means of the clamping devices there is no tendency for the arms to bend or have an irregular projection from the shaft but said arms will always be maintained in planes in right angles to the shaft. If the fiat sides or faces of'the arms were applied to the shaft and engaged by the clamping devices or by analogous fastening means, the drawing tension of the fastening devices would pull over the applied extremities of the arms and bend the latter out of true. Moreover, the edgewise application of the arms to the shaft permits the said arms to be made of lighter material without in the least detracting from an effective application of the arms in view of the resistance set up by the arms transversely of the latter at the points where they engage the shaft and are secured by the clamping devices. The pairs of arms may be readily detached and repaired or replaced as may be found necessary, and the said arms may also be set at any distance apart on the shaft and held in fixed position.

It will be observed that the arms may be readily applied to the shaft 8 through the opening in the casing 5 which is normally closed by the door 15, and likewise the arms may be easily reached through the same opening when it is desired to repair, read just or replace the arms. Moreover, the arms may be applied to or removed from the shaft 8 without dissociating the said shaft from the cleaner, which is of material advantage in devices of this class.

What is claimed is:

1. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms having their longitudinal side edges directly applied to and secured on the shaft at intervals at diametrically opposite points, and means engaging the inner portions of each pair of arms for separably clamping the latter to the shaft.

2. In a cotton cleaner, a casing having a shaft therein, beater arms arranged in contiguous pairs on the shaft, each pair of beater arms having the inner portions of their longitudinal side edges applied to diametrically opposite portions of the shaft,

and clamping devices engaging the inner portions of each pair of beater arms and extending across opposite parts of the shaft.

3. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms having flat sides with their side edges separably applied to the shaft at intervals, and clamping devices engaging the inner portions of each pair of arms and extending across and bearing against opposite flat sides of the arms.

4;. In a cotton cleaner, shaft therein, pairs of beater arms having fiat sides with outer laterally deflected extremities and arranged with their side edges bearing at intervals against opposite portions of the shaft, and clamping devices seated in the inner portions of each pair of arms and extending across opposite flat sides of the latter and having terminals embracing outer edges of the arms to separably secure the arms to the shaft.

5. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms arranged at intervals in planes at right angles to the shaft and having their inner side edges near their inner extremities notched and applied against opposite portions of the shaft surface, and means engaging the inner extremities of each pair of arms and exterior of the shaft to separably secure the said arms to the shaft.

6. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms arranged at intervals in planes at right angles to the shaft and having edges near their inner extremities notched and applied against opposite portions of the shaft surface, and reversely arranged means extending across the inner extremities and engaging the outer edges of each pair of arms to separably secure the said arms to the shaft.

7. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms arranged at intervals on the shaft and having the inner edges near their inner extremities applied against opposite portions of the shaft surface, and clamping devices extending across the inner extremities of each pair of arms and provided with hooked terminals to embrace outer edges of the arms and separably secure the latter on the shaft and a casin havin a also to brace one arm With relation to the other.

8. In a cotton cleaner, a casing having a shaft therein, pairs of beater arms arranged at intervals on the shaft and having the inner portions near their inner extremities applied against opposite portions of the shaft surface, the inner extremities of the arms being formed with books, and clamping devices reversely arranged and seated in the hooks at the inner extremities of the arms and provided With terminal hooks to embrace outer edges of the arms, the said clamping devices extending across opposing portions of the inner extremities of the arms.

9. In a cotton cleaner, a casing having a shaft therein, pairs of flat beater arms arranged at intervals on the shaft, and means extending across opposite fiat sides of the arms and engaging outer edges of the latter 20 In testimony whereof I have hereunto set 25 my hand in presence of two subscribing Witnesses.

STEPHEN D. MURRAY.

Witnesses:

G. E. Gnmnsrrn, W. M. VIoK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

